如何优雅的使用 laravel 的 validator验证方法

web 开发过程中经常会需要进行参数验证，laravel 中我们常用 validator 或者 request 这两种方法来进行验证，但是这两种验证都不是很方便进行自定义提示信息，自定义验证规则，所以下面来介绍一种很方便的用法：

新建抽象类

namespace AppHttpValidators;

use Validator;

abstract class AbstractValidator

{

/**

* Validator

*

* @var IlluminateValidationFactory

*/

protected $validator;

/**

* Validation data key => value array

*

* @var array

*/

protected $data = array();

/**

* Validation errors

*

* @var array

*/

protected $errors = array();

/**

* Validation rules

*

* @var array

*/

protected $rules = array();

/**

* Validation messages

*

* @var array

*/

protected $messages = array();

/**

* Validation codes

*

* @var array

*/

protected $codes = array();

public function __construct(array $data)

{

$this->data = $data;

$this->before();

$this->validator = Validator::make($this->data,$this->rules,$this->messages);

$this->after();

}

/**

* Set data to validate

*

* @return validator

*/

public function getValidator()

{

return $this->validator;

}

/**

* Set data to validate

*

* @return $this

*/

public function with(array $data)

{

$this->data = $data;

$this->before();

$this->validator = $this->validator->make($this->data,$this->messages);

$this->after();

return $this;

}

/**

* Validation passes or fails

*

* @return boolean

*/

public function passes()

{

if ($this->validator->fails()) {

$this->errors = $this->validator->messages();

return false;

}

return true;

}

/**

* Return errors,if any

*

* @return array

*/

public function errors()

{

return $this->errors;

}

/**

* Return errors codes,if any

*

* @return array

*/

public function getCodes()

{

return $this->codes;

}

/**

* getRules

*

* @return array

*/

public function getRules()

{

return $this->rules;

}

/**

* getData

*

* @return array

*/

public function getData()

{

return $this->data;

}

/**

* getErrors

*

* @return array

*/

public function getErrors()

{

return $this->errors;

}

/**

* getMessages

*

* @return array

*/

public function getMessages()

{

return $this->messages;

}

/**

* setRule

*

* @param string $key

* @param string $value

*

* @return $this

*/

public function setRule($key,$value)

{

$this->rules[$key] = $value;

return $this;

}

/**

* emptyRules

*

* @return $this

*/

public function emptyRules()

{

$this->rules = array();

return $this;

}

/**

* sometimes

*

* @param string $attribute

* @param string|array $rules

* @param callable $callback

*

* @return $this

*/

public function sometimes($attribute,$rules,callable $callback)

{

$this->validator->sometimes($attribute,$callback);

return $this;

}

/**

* resolver

*

* @param Closure $resolver

*

* @return $this

*/

public function resolver(Closure $resolver)

{

Validator::resolver($resolver);

return $this;

}

/**

* replacer

*

* @param Closure $resolver

*

* @return $this

*/

public function replacer($replace,Closure $resolver)

{

Validator::replacer($replace,$resolver);

return $this;

}

/**

* extendImplicit

*

* @param Closure $resolver

*

* @return $this

*/

public function extendImplicit($extendImplicit,Closure $resolver)

{

Validator::extendImplicit($extendImplicit,$resolver);

return $this;

}

/**

* extend

*

* @param string $rule

* @param Closure|string $extension

* @param string $message

*

* @return $this

*/

public function extend($rule,$extension,$message = null)

{

Validator::extend($rule,$message);

return $this;

}

/**

* before (extend(),resolver())

*

* @return $this

*/

public function before()

{

}

/**

* after(sometimes())

*

* @return $this

*/

public function after()

{

}

}

新建中间件

namespace AppHttpMiddleware;

use Closure;

use IlluminateHttpRequest;

class ValidateAdminMiddleware

{

/**

* This namespace is applied to the controller routes in your routes file.

*

* In addition,it is set as the URL generator's root namespace.

*

* @var string

*/

protected $namespace = 'AppHttpValidators';

/**

* Handle an incoming request.

*

* @param IlluminateHttpRequest $request

* @param Closure $next

*

* @return mixed

*/

public function handle(Request $request,Closure $next,$validator = null)

{

if ($request->isMethod('POST')) {

$type = $request->segment(1);

if ($validator) {

$validator = $this->namespace . '' . studly_case($type) . '' . studly_case($validator) . 'Validator';

$validator = new $validator($request->all());

if (!$validator->passes()) {

if ($request->isAjax()) {

return $validator->errors()->first();

} else {

return redirect()->back()

->withErrors($validator->getValidator())

->withInput();

}

}

}

}

return $next($request);

}

}

新建 TestTestValidator

namespace AppHttpValidatorsAdmin;

use AppHttpValidatorsAbstractValidator;

class TestValidator extends AbstractValidator

{

/**

* Validation rules

*

* @var Array

*/

protected $rules = array(

'name' => ['required','test','min:1'],

);

/**

* Validation messages

*

* @var Array

*/

protected $messages = array(

'name.required' => '必填',

'name.min' => '最少1个字符',

'name.test' => '测试',

);

/**

* 自定义验证规则或者扩展Validator类

*/

public function before()

{

$this->extend('test',function ($attribute,$value,$parameters) {

return bool;

});

}

}

路由中如何使用

Route::post('/',['middleware' => ['valiAdmin:Test'],'uses' => 'IndexController@test']);

具体使用可以自行配置~

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程之家。

（编辑：李大同）

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